Ubufakazi bokuqhuma kwe-Shenhai
Lapho kuxoxwa ngamazinga okushisa, indaba yokwenyuka kwezinga lokushisa ezinjinini ezingaqhumi iba yinto efanele. Empeleni, kunamaphuzu amabili abalulekile okumele kufinyelelwe kuwo ukuvumelana:
I-Class F Insulation:
Okwamanje, phezu 90% amamothoni anamandla aphezulu naphansi angaqhumi eShayina afakwe i-Class F. Ukwelula isikhathi sokuphila samamotho angaqhumi, Ngaphezu kwe 90% zabakhiqizi zikhomba “Ukufakwa kwe-Class F, izinga lokushisa ukukhuphuka kuhlolwe ngemikhawulo Yekilasi B” emasampulini abo. Ukufakwa kwe-Class B kuvumela izinga lokushisa elingu-130°C, kuyilapho Ikilasi F livumela kufika ku-155°C. Uma kubhekwa izinga lokushisa lemvelo elingu-40°C, inqubo yokukhiqiza kanye nokuguquguquka kwempahla okungu-5°C no-10°C, i ifektri umkhawulo wokwenyuka kwezinga lokushisa wama-motor angaqhumeki e-Class B usethelwe ku-80K, kanye ne-Class F, ngi 90k (95K yamamotho angaphansi komhlaba angaqhumi).
I-Class H Insulation:
Ukushisa kwe-Class H kuvumela izinga lokushisa elingu-180°C. Nokho, umklamo, ukukhiqiza, ama-bearings, kanye nezinto zokugcoba zamamotho angaqhumisi e-Class H awakasetshenziswa kabanzi e-China. Kwabakhiqizi, ukukhiqiza i-Class H insulated windings akunzima; inselele ilele kuma-bearings asezingeni eliphezulu. Ngakho-ke, ngaphandle uma kunesidingo (njengasezindaweni ezinezinga lokushisa elingu-60°C, noma kuphi injini engaqhumi usayizi unomkhawulo), ukusetshenziswa kwezinjini ezingaqhumi ze-Class H kufanele kugwenywe.